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Posted to dev@tomcat.apache.org by re...@apache.org on 2020/05/08 18:38:47 UTC

[tomcat] branch 9.0.x updated: Add support for ALPN on Java 8

This is an automated email from the ASF dual-hosted git repository.

remm pushed a commit to branch 9.0.x
in repository https://gitbox.apache.org/repos/asf/tomcat.git


The following commit(s) were added to refs/heads/9.0.x by this push:
     new 8d2fd94  Add support for ALPN on Java 8
8d2fd94 is described below

commit 8d2fd94055fa1c8b930264245571d768782876ac
Author: remm <re...@apache.org>
AuthorDate: Fri May 8 18:36:10 2020 +0200

    Add support for ALPN on Java 8
    
    HTTP/2 with a browser does work for me now.
---
 java/org/apache/tomcat/util/compat/Jre9Compat.java | 31 ----------------
 java/org/apache/tomcat/util/compat/JreCompat.java  | 41 ++++++++++++++++++++--
 .../tomcat/util/net/AbstractJsseEndpoint.java      |  2 +-
 .../apache/tomcat/util/net/SecureNio2Channel.java  |  2 +-
 .../apache/tomcat/util/net/SecureNioChannel.java   |  2 +-
 .../tomcat/util/net/jsse/JSSEImplementation.java   |  2 +-
 webapps/docs/changelog.xml                         |  7 ++++
 7 files changed, 50 insertions(+), 37 deletions(-)

diff --git a/java/org/apache/tomcat/util/compat/Jre9Compat.java b/java/org/apache/tomcat/util/compat/Jre9Compat.java
index 29fef06..8e0812c 100644
--- a/java/org/apache/tomcat/util/compat/Jre9Compat.java
+++ b/java/org/apache/tomcat/util/compat/Jre9Compat.java
@@ -31,9 +31,6 @@ import java.util.Set;
 import java.util.jar.JarFile;
 import java.util.zip.ZipFile;
 
-import javax.net.ssl.SSLEngine;
-import javax.net.ssl.SSLParameters;
-
 import org.apache.juli.logging.Log;
 import org.apache.juli.logging.LogFactory;
 import org.apache.tomcat.util.res.StringManager;
@@ -44,8 +41,6 @@ class Jre9Compat extends JreCompat {
     private static final StringManager sm = StringManager.getManager(Jre9Compat.class);
 
     private static final Class<?> inaccessibleObjectExceptionClazz;
-    private static final Method setApplicationProtocolsMethod;
-    private static final Method getApplicationProtocolMethod;
     private static final Method setDefaultUseCachesMethod;
     private static final Method bootMethod;
     private static final Method configurationMethod;
@@ -64,8 +59,6 @@ class Jre9Compat extends JreCompat {
 
     static {
         Class<?> c1 = null;
-        Method m2 = null;
-        Method m3 = null;
         Method m4 = null;
         Method m5 = null;
         Method m6 = null;
@@ -96,8 +89,6 @@ class Jre9Compat extends JreCompat {
             Method runtimeVersionMethod = JarFile.class.getMethod("runtimeVersion");
             Method majorMethod = versionClazz.getMethod("major");
 
-            m2 = SSLParameters.class.getMethod("setApplicationProtocols", String[].class);
-            m3 = SSLEngine.class.getMethod("getApplicationProtocol");
             m4 = URLConnection.class.getMethod("setDefaultUseCaches", String.class, boolean.class);
             m5 = moduleLayerClazz.getMethod("boot");
             m6 = moduleLayerClazz.getMethod("configuration");
@@ -129,8 +120,6 @@ class Jre9Compat extends JreCompat {
         }
 
         inaccessibleObjectExceptionClazz = c1;
-        setApplicationProtocolsMethod = m2;
-        getApplicationProtocolMethod = m3;
         setDefaultUseCachesMethod = m4;
         bootMethod = m5;
         configurationMethod = m6;
@@ -172,26 +161,6 @@ class Jre9Compat extends JreCompat {
 
 
     @Override
-    public void setApplicationProtocols(SSLParameters sslParameters, String[] protocols) {
-        try {
-            setApplicationProtocolsMethod.invoke(sslParameters, (Object) protocols);
-        } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
-            throw new UnsupportedOperationException(e);
-        }
-    }
-
-
-    @Override
-    public String getApplicationProtocol(SSLEngine sslEngine) {
-        try {
-            return (String) getApplicationProtocolMethod.invoke(sslEngine);
-        } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
-            throw new UnsupportedOperationException(e);
-        }
-    }
-
-
-    @Override
     public void disableCachingForJarUrlConnections() throws IOException {
         try {
             setDefaultUseCachesMethod.invoke(null, "JAR", Boolean.FALSE);
diff --git a/java/org/apache/tomcat/util/compat/JreCompat.java b/java/org/apache/tomcat/util/compat/JreCompat.java
index 2ad6cae..8275e60 100644
--- a/java/org/apache/tomcat/util/compat/JreCompat.java
+++ b/java/org/apache/tomcat/util/compat/JreCompat.java
@@ -19,6 +19,8 @@ package org.apache.tomcat.util.compat;
 import java.io.File;
 import java.io.IOException;
 import java.lang.reflect.AccessibleObject;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
 import java.net.URL;
 import java.net.URLConnection;
 import java.util.Deque;
@@ -44,6 +46,9 @@ public class JreCompat {
     private static final boolean jre9Available;
     private static final StringManager sm = StringManager.getManager(JreCompat.class);
 
+    protected static final Method setApplicationProtocolsMethod;
+    protected static final Method getApplicationProtocolMethod;
+
     static {
         // This is Tomcat 9 with a minimum Java version of Java 8.
         // Look for the highest supported JVM first
@@ -61,6 +66,17 @@ public class JreCompat {
             jre9Available = false;
         }
         jre11Available = instance.jarFileRuntimeMajorVersion() >= 11;
+
+        Method m1 = null;
+        Method m2 = null;
+        try {
+            m1 = SSLParameters.class.getMethod("setApplicationProtocols", String[].class);
+            m2 = SSLEngine.class.getMethod("getApplicationProtocol");
+        } catch (ReflectiveOperationException | IllegalArgumentException e) {
+            // Only the newest Java 8 have the ALPN API, so ignore
+        }
+        setApplicationProtocolsMethod = m1;
+        getApplicationProtocolMethod = m2;
     }
 
 
@@ -74,6 +90,11 @@ public class JreCompat {
     }
 
 
+    public static boolean isAlpnSupported() {
+        return setApplicationProtocolsMethod != null && getApplicationProtocolMethod != null;
+    }
+
+
     public static boolean isJre9Available() {
         return jre9Available;
     }
@@ -109,7 +130,15 @@ public class JreCompat {
      *                      connection
      */
     public void setApplicationProtocols(SSLParameters sslParameters, String[] protocols) {
-        throw new UnsupportedOperationException(sm.getString("jreCompat.noApplicationProtocols"));
+        if (setApplicationProtocolsMethod != null) {
+            try {
+                setApplicationProtocolsMethod.invoke(sslParameters, (Object) protocols);
+            } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
+                throw new UnsupportedOperationException(e);
+            }
+        } else {
+            throw new UnsupportedOperationException(sm.getString("jreCompat.noApplicationProtocols"));
+        }
     }
 
 
@@ -123,7 +152,15 @@ public class JreCompat {
      * @return The name of the negotiated protocol
      */
     public String getApplicationProtocol(SSLEngine sslEngine) {
-        throw new UnsupportedOperationException(sm.getString("jreCompat.noApplicationProtocol"));
+        if (getApplicationProtocolMethod != null) {
+            try {
+                return (String) getApplicationProtocolMethod.invoke(sslEngine);
+            } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
+                throw new UnsupportedOperationException(e);
+            }
+        } else {
+            throw new UnsupportedOperationException(sm.getString("jreCompat.noApplicationProtocol"));
+        }
     }
 
 
diff --git a/java/org/apache/tomcat/util/net/AbstractJsseEndpoint.java b/java/org/apache/tomcat/util/net/AbstractJsseEndpoint.java
index 3ab42f7..d43ea54 100644
--- a/java/org/apache/tomcat/util/net/AbstractJsseEndpoint.java
+++ b/java/org/apache/tomcat/util/net/AbstractJsseEndpoint.java
@@ -123,7 +123,7 @@ public abstract class AbstractJsseEndpoint<S,U> extends AbstractEndpoint<S,U> {
 
         SSLParameters sslParameters = engine.getSSLParameters();
         sslParameters.setUseCipherSuitesOrder(sslHostConfig.getHonorCipherOrder());
-        if (JreCompat.isJre9Available() && clientRequestedApplicationProtocols != null
+        if (JreCompat.isAlpnSupported() && clientRequestedApplicationProtocols != null
                 && clientRequestedApplicationProtocols.size() > 0
                 && negotiableProtocols.size() > 0) {
             // Only try to negotiate if both client and server have at least
diff --git a/java/org/apache/tomcat/util/net/SecureNio2Channel.java b/java/org/apache/tomcat/util/net/SecureNio2Channel.java
index d3a0b73..394837c 100644
--- a/java/org/apache/tomcat/util/net/SecureNio2Channel.java
+++ b/java/org/apache/tomcat/util/net/SecureNio2Channel.java
@@ -245,7 +245,7 @@ public class SecureNio2Channel extends Nio2Channel  {
                         if (sslEngine instanceof SSLUtil.ProtocolInfo) {
                             socketWrapper.setNegotiatedProtocol(
                                     ((SSLUtil.ProtocolInfo) sslEngine).getNegotiatedProtocol());
-                        } else if (JreCompat.isJre9Available()) {
+                        } else if (JreCompat.isAlpnSupported()) {
                             socketWrapper.setNegotiatedProtocol(
                                     JreCompat.getInstance().getApplicationProtocol(sslEngine));
                         }
diff --git a/java/org/apache/tomcat/util/net/SecureNioChannel.java b/java/org/apache/tomcat/util/net/SecureNioChannel.java
index 1bd143f..820b736 100644
--- a/java/org/apache/tomcat/util/net/SecureNioChannel.java
+++ b/java/org/apache/tomcat/util/net/SecureNioChannel.java
@@ -196,7 +196,7 @@ public class SecureNioChannel extends NioChannel {
                         if (sslEngine instanceof SSLUtil.ProtocolInfo) {
                             socketWrapper.setNegotiatedProtocol(
                                     ((SSLUtil.ProtocolInfo) sslEngine).getNegotiatedProtocol());
-                        } else if (JreCompat.isJre9Available()) {
+                        } else if (JreCompat.isAlpnSupported()) {
                             socketWrapper.setNegotiatedProtocol(
                                     JreCompat.getInstance().getApplicationProtocol(sslEngine));
                         }
diff --git a/java/org/apache/tomcat/util/net/jsse/JSSEImplementation.java b/java/org/apache/tomcat/util/net/jsse/JSSEImplementation.java
index 561dc3d..1c1eae8 100644
--- a/java/org/apache/tomcat/util/net/jsse/JSSEImplementation.java
+++ b/java/org/apache/tomcat/util/net/jsse/JSSEImplementation.java
@@ -52,6 +52,6 @@ public class JSSEImplementation extends SSLImplementation {
 
     @Override
     public boolean isAlpnSupported() {
-        return JreCompat.isJre9Available();
+        return JreCompat.isAlpnSupported();
     }
 }
diff --git a/webapps/docs/changelog.xml b/webapps/docs/changelog.xml
index b36da54..55646c5 100644
--- a/webapps/docs/changelog.xml
+++ b/webapps/docs/changelog.xml
@@ -45,6 +45,13 @@
   issues do not "pop up" wrt. others).
 -->
 <section name="Tomcat 9.0.36 (markt)" rtext="in development">
+  <subsection name="Coyote">
+    <changelog>
+      <update>
+        Add support for ALPN on recent OpenJDK 8 releases. (remm)
+      </update>
+    </changelog>
+  </subsection>
 </section>
 <section name="Tomcat 9.0.35 (markt)" rtext="release in progress">
   <subsection name="Catalina">


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